Another good one if you have a camp house is to back off the screw on the back of the cabinet knobs. Tie a string to the screw and tighten it back down. Tie other end of the string to the fake snake. Then ask your buddy to grab you a cup or plate out of the cabinet. When he swings the door open the snake comes out with it right at the poor fellow! We have got a lot of miles on that one over the years.